Founded by Case Western professor Alexander Dybbs, PhD., Sonogage, Inc. developed ultrasound pachymeters for precise corneal measurement, pioneering the field with a 50 MHz probe. The company served customers for nearly 40 years and closed at the end of 2023 following Dybbs’s passing.
SONOTEC GmbHFounded by two physicists in 1991, owner-managed SONOTEC GmbH develops and manufactures ultrasonic transducers, sensors, testing equipment, and measurement solutions from Halle (Saale). Its roughly 200-person team builds customer-specific systems for applications ranging from non-invasive fluid monitoring to preventive maintenance and nondestructive testing, with a U.S. sales and service subsidiary established in 2013. SONOTEC has maintained ISO 9001 quality management since 1996 and also holds EN ISO 13485 certification for medical-device quality management.HAUPPAUGE, NY
DGH Technology, IncSince 1982, DGH Technology has manufactured ophthalmic ultrasound diagnostic equipment for eye-care professionals, producing its devices on site at its Pennsylvania factory. The multigenerational family company has shipped more than 40,000 medical ultrasound devices worldwide and supports customers through a network of distributors in over 60 countries.EXTON, PA
Sonogen MedicalFounded by acoustics and ultrasound expert Alan Winder, Sonogen Medical develops advanced ultrasound devices for bone-fracture healing. Based in Baltimore’s Launchport medical-device incubator, the company pairs a portable 20-minute-per-day treatment device with ultrasound-based monitoring that lets patients and caregivers follow healing progress. Its technology grew from Winder’s decades of sonar and medical-ultrasound research, including work that helped commercialize an earlier ultrasonic bone-healing device.CHEVY CHASE, MD
Laser Probe, IncFounded in 1992 to carry on the former Laser Precision Corporation Radiometric Division, employee-owned Laser Probe, Inc. developed laser measurement instruments, including power and energy meters and radiometers. Its best-known work included broad-spectrum measurement equipment and the NIST-recognized Electrically Calibrated Pyroelectric Radiometer, a ±1% radiometric transfer standard. Laser Probe stopped manufacturing new instruments in 2025 and now directs owners of existing equipment to Legacy Fiberoptics for service.UTICA, NY